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zipcodes.pro — ZIP/61011

61011

ZIP 61011 is Caledonia, Illinois, mostly in Boone County; area codes 815 and 779; Central time.

Type
Standard
Time zone
America/Chicago
County
Boone +1 more
Metro area
Rockford, IL
Population
2,676
Coordinates
42.3923, -88.8971
☼ Live from 61011 — Caledonia, IL

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Local time: —

Where 61011 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 61011
  • 🔢 Type 61011 into a pocket calculator and turn it upside down: IIOIg — not quite a word, sorry.
  • ➕ As a number, 61,011 = 3 × 3 × 6779. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110111001010011
  • 🏠 Its numerical neighbours: 61010 (Byron, IL, 26 mi away) and 61012 (Capron, IL, 7 mi away).
  • 🔄 Backwards, 61011 becomes 11016, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (01116, 01611, 06111, 10116, 10161, 11106, …). The farthest-flung twin is 01611 in Cherry Valley, MA, 868 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther west than 53%.
  • 🎯534 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 61011 and you would come out at 42.39°S, 91.10°E — 1,109 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 38.5 square miles of land, 61011 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
🌙 The sky over 61011 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,676This ZIP2,676
Households1,028This ZIP1,028
Housing units1,048This ZIP1,048
Median age44.8This ZIP44.8Illinois39.0US 38.9
Median household income$127,273This ZIP$127,273Illinois$83,390US $80,734
Median home value$311,900This ZIP$311,900Illinois$263,300US $332,700
Median gross rent$1,685This ZIP$1,685Illinois$1,274US $1,413
Bachelor's degree or higher39.6%This ZIP39.6%
Mean commute31.9 minThis ZIP31.9 min
Population density69.5 / sq miThis ZIP69.5 / sq mi

Business and tax activity

Business establishments58This ZIP58
Employees460This ZIP460
Annual payroll$26,312,000This ZIP$26,312,000
Tax returns filed1,440This ZIP1,440
Total adjusted gross income$178,291,000This ZIP$178,291,000

Land area

Land area38.53 sq miThis ZIP38.53 sq mi
Water area0.07 sq miThis ZIP0.07 sq mi

Counties 61011 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Boone County 82.0%
Winnebago County 18.0%

Other place names in 61011

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 61011

ZIPCityDistance
61065 Poplar Grove, IL 3.1 mi
61073 Roscoe, IL 5.4 mi
61111 Loves Park, IL 6.7 mi
61012 Capron, IL 6.8 mi
61115 Machesney Park, IL 6.8 mi
61080 South Beloit, IL 7.6 mi
61114 Rockford, IL 7.6 mi
61107 Rockford, IL 9.1 mi
61103 Rockford, IL 10.3 mi
61008 Belvidere, IL 10.5 mi

Find every ZIP code within 10 miles of 61011 →

Questions about this ZIP code

Where is ZIP code 61011?

61011 is in Caledonia, Illinois, in Boone County, part of the Rockford, IL metropolitan area. Its published point location is 42.3923, -88.8971.

What county is 61011 in?

61011 spans 2 counties: Boone County and Winnebago County. Most of it falls in Boone County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 61011?

Caledonia uses area codes 815 and 779, from NANPA's telephone records.

What time zone is 61011 in?

61011 uses America/Chicago.

How many people live in 61011?

About 2,676 people live in ZIP code 61011, in 1,028 households, at 69.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 61011?

$127,273 a year, against $83,390 across Illinois.

What ZIP codes are near 61011?

The closest are 61065 (3.1 mi), 61073 (5.4 mi), 61111 (6.7 mi), 61012 (6.8 mi) and 61115 (6.8 mi).

Is 61011 a PO Box ZIP code?

61011 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “61011 ZIP Code — Caledonia, Illinois (Boone County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61011

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